AZ91 합금 용탕내 Mn과 Fe의 상호용해도 측정 및 AZ91D 재생지금의 성분조정에의 활용

권순일; 변지영; 김선진; 심재동; Soon-Il Kwon; Ji-Young Byun; Seon-Jin Kim; Jae-Dong Shim

Korean Journal of Materials Research, Vol.13, No.9, 619-624, September, 2003

DOI10.3740/MRSK.2003.13.9.619 Export Citation

AZ91 합금 용탕내 Mn과 Fe의 상호용해도 측정 및 AZ91D 재생지금의 성분조정에의 활용

Mutual Solubility of Mn and Fe in AZ91 Alloy Melts and Its Application to Composition Control of AZ91D Recycled Ingots

권순일^†, 변지영¹, 김선진 , 심재동¹

한양대학교 신소재공학부 재료공학과
¹한국과학기술연구원 재료연구부

Soon-Il Kwon^†, Ji-Young Byun¹, Seon-Jin Kim , and Jae-Dong Shim¹

Department of Materials Science and Engineering, Hanyang University, Seoul 133-791, Korea
¹Division of Materials, Korea Institute of Science and Technology, Seoul 130-650, Korea

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This paper describes a method to control Mn and Fe contents in recycled AZ91D ingots, based on the mutual solubility of Mn and Fe in AZ91 alloy melts. For this purpose, Fe solubility with the change of Mn content and temperature was investigated in the homogenized and re-precipitated liquid AZ91 alloy. The increase of the amount of Mn added to the melt resulted in the decrease of Fe content. The data obtained in this study was adopted to the pilot plant for recycling of the scrap. As a result, Mn and Fe contents measured in the recycled ingot were in good agreement with ASTM B93 standard.

Keywords:AZ91D ingot;mutual solubility;homogenized and re-precipitated liquid AZ91 alloy;recycled ingot;ASTM B93

[References]

Mordike BL, Ebert T, Mater. Sci. Eng. A, 302, 37 (2001)
Lockwood LF, Technical Committee Report from the International Magnesium Association (1988) (1988)
Holta O, Westengen H, Roen J, Proceedings of the 3rd International magnesium Conference, 10-12, 75 (1996)
Holta O, Westengen H, Albright D, SAE Technical Paper, 940412, 221 (1994)
Byun JY, Moon JH, Shim JD, Paik YH: Proceedings of the International Symposium on Light Metals, 1997 Metaux Legers, Sudbury, Ontaio, Canada, Aug 17-20, 103 (1997) (1997)
Lunder O, Nordlien JH, Nisancioglu K, Corrosion Reviews, 15(3-4), 439 (1997)

[Related Articles]

[1] Mordike BL, Ebert T, Mater. Sci. Eng. A, 302, 37 (2001)

[2] Lockwood LF, Technical Committee Report from the International Magnesium Association (1988) (1988)

[3] Holta O, Westengen H, Roen J, Proceedings of the 3rd International magnesium Conference, 10-12, 75 (1996)

[4] Holta O, Westengen H, Albright D, SAE Technical Paper, 940412, 221 (1994)

[5] Byun JY, Moon JH, Shim JD, Paik YH: Proceedings of the International Symposium on Light Metals, 1997 Metaux Legers, Sudbury, Ontaio, Canada, Aug 17-20, 103 (1997) (1997)

[6] Lunder O, Nordlien JH, Nisancioglu K, Corrosion Reviews, 15(3-4), 439 (1997)